Coloring: Therapy?

Coloring soothes me.  It always has.  Here lately my daughter has gotten a tad stingy with the coloring books and crayons…so I swiped this page last night and colored it after she went to bed.  Ooohhh….and some of the crayons still had their new points.  Is it abnormal for my heart-rate to climb when coloring [...]